Bug: Duplicate identical rows in matrix

Exact same problem here. Started maybe two weeks ago with all my published reports. I am going to create a support ticket for it. No problem in the desktop, only in service.

If I open any row to level 3, the rows on level 2 will duplicate as many times as there were original rows on that level. So if a level 2 should have 9 subrows, it will display 81 rows with this bug.

I did create a very simple test matrix with four levels, but couldn't replicate the problem with that in service.

Edit: oh there's some investigation going on at (fixed link) https://community.powerbi.com/t5/Issues/Sorting-bug-in-Power-BI-Service-different-result-than-in-desktop/idi-p/2766872

So this has something to do with sorting.